Being in the industry i cant stress enough the total bs the 30,000, 40,000 and 50,000 hour claims are. They say the led will last that long. Its the drivers that fail.
We have seen lots of industrial grade leds fail within 2 years.....far short of the 50,000 hour claims. These are failing within 3-4,000 hour range. When we replace the drivers they light right up again. And these arnt $19 lights. There $500.00 fixtures. How well do you think the 19 dollers ones will last.
There was also a utility funded refund i skipped last year that allowed a $10.00 per lamp rebate to replace t8 lamps with an led lamp. The rebate covered lamp cost and the owners just paid labor. Other contractors have been telling me that there getting call backs anout failing lights. The dealers are giving free replacement lamps, but the contractors gave to eat labor costs.
Im not swapping out my HID's any time soon.